Security

Cotool

Website
Founded 2025Origin source ↗Checked 2026-09-15

Overview

Cotool builds AI agents and the infrastructure around them to help security teams detect threats, investigate alerts, hunt for attacks, and respond.

Our agents work across a team's security tools and data. They investigate alerts, write and tune Python detections, and turn threat intelligence into hunts and new coverage. Teams can customize agents around their workflows, inspect the evidence, edit detection logic, and bring humans in when judgment or approval matters.

Underneath the agents, Cotool provides log storage and search built for their workloads, with access to data where it already lives. The goal is to give security teams more capacity to defend their companies as their environments and workloads grow.

Teams at Ramp, EliseAI, ClickHouse, Legora, and many more use Cotool.

Company description As recorded 2026-11-08
LinkedIn About
SecurityAI agentBusinessesMid marketSubscription

Founders & team

Previously Holtzman

Company history As recorded 2026-11-08

Logan Carmody

Founder/CTO

building Cotool for security teams hmu if you're interested in chatting (opp|app)-sec, agents, trail running or cycling

LinkedIn X
Founder profile As recorded 2026-09-15
4team members reported
Source-reported As recorded 2026-09-15

Founded 2025 · Source

News & product activity

Sources & observations

Andreessen Horowitz · Y Combinator

Profile depthenriched profile
Website observationwebsite reachable
Last website check2026-11-11
Location · source statedSan Francisco, CA, USA
Pricing evidenceNo pricing page confirmed
Maturity: Operating · 3 of 6 areas documented

Source-based assessment · automated evidence rules

The company website explicitly reports customer or user adoption. This is a source-based assessment of a company claim; scale and revenue are not independently verified.

Company website: home Checked 2026-10-26

Loved by teams at:

Maturity is an evidence-based assessment, not a success rating. It may understate the current stage where evidence is limited. Coverage records documented areas, not a complete or independently audited company history.

Stage definitions
independent websitesource corroborationreachable websitedescriptive evidenceclassified market and modelsourced peoplesourced founding yearrecent publishing observed
startup.observe Directory coverage · Sources & method